Table 2.

Weight loss in milligrams (mg) of composite resin materials after 14 days of immersion in different teas

Composite Resin	Distilled Water	Black tea	Rooibos tea	Peppermint tea
Estelite Palfique Paste	−0.10 (−0.10 – 0.20)A,a	0.10 (−0.80 – 0.70)A,a	0.00 (−0.60 – 0.30)A,a	0.00(−0.50 – 0.50)A,a
Estelite Posterior	0.20 (−0.30 – 0.50)AB,b	0.10 (−0.80 – 0.80)AB,a	0.15(0.00–0.30)B,a	−0.10(−0.50 – 0.20)A,a

^*Values are presented as Median (Min–Max). Different uppercase letters (A,B) indicate statistically significant difference between staining conditions for each composite resin (horizontal comparison: Bonferroni−adjusted Mann–Whitney test, p < 0.0083). Different lowercase letters (a,b) indicate statistically significant difference between composite resins within each aging condition (vertical comparison: Bonferroni−adjusted Mann–Whitney test, p < 0.0125)